Rank: Advanced Member Groups: Registered
Joined: 27/05/2016(UTC) Posts: 77 Location: Little Rock, Arkansas Was thanked: 9 time(s) in 7 post(s)
|
Am I missing something here? It seems that the sum(1) function that's supposed to provide the sum of the elements of a vector/matrix is coming up with an error in the basic summation. In the screenshot attached, the sum(1) function totals 87.288 kips for a 4 element single column matrix that adds up to 86.215 kips by hand on a calculator, by adding the elements individually in SMath, and by an L1 norm function. It's over 1 kip different, so it shouldn't be rounding in any way. Is there something different about the sum(1) function that would cause it to come up with a different answer, or is this a bug? Thanks, Jason |
Jason McCool Robbins Engineering Little Rock, AR, USA |
|
|
|
Rank: Advanced Member Groups: Registered
Joined: 10/12/2009(UTC) Posts: 248 Location: Cali, Colombia Was thanked: 87 time(s) in 66 post(s)
|
I'm trying to replicate this issue, but for me all calculations are ok. Please check your SMath version.. Sumation issue.sm (5kb) downloaded 2 time(s).Oscar
|
|
|
|
Rank: Advanced Member Groups: Registered
Joined: 27/05/2016(UTC) Posts: 77 Location: Little Rock, Arkansas Was thanked: 9 time(s) in 7 post(s)
|
Yeah, I'm on the same version as you: appVersion(4)="1.0.8348.30405". When I copy that data into a new sheet or enter new data in a new sheet and sum it, it works out, same as what you're seeing. But it still displays the wrong sum in the original sheet. I'm going to have to take a look at it more tomorrow with fresh eyes, but thanks for the quick response. I hadn't actually tried it in a clean worksheet earlier, so there must be something in my other worksheet causing a problem. Jason |
Jason McCool Robbins Engineering Little Rock, AR, USA |
|
|
|
Rank: Guest
Groups: Registered
Joined: 04/07/2015(UTC) Posts: 6,866 Was thanked: 981 time(s) in 809 post(s)
|
Same as Oscar, because we both composed on new sheet. Jean
|
|
|
|
Forum Jump
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.